Slug-casting machine



w. s. COE. 'SLUG CASTING MACHINE.

APPLICATION FILED APR.I2.19H 1,304,660.

amyh

Patented May 27, 1919.

I intermittently rotating WALTER s. con, or

BROOKLYN, NEW YORK, ASsIGNOR 'ro MERGENTHALER COMPANY, n CORPORATION OF NEW YORK.

SLUG-CAS'IING MACHINE.

Specification of Letters Patent.

Patented. May 27, 1919.;

Application filed April 12, 1917. Serial No. 161,401.

To all whom it may concern:

Be it known that I, WALTER S. Con, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Slug-Casting Machines, of which the following is a specification, reference being had therein to the accompanying drawing.

My invention has reference to slug casting machines, such as linotype machines of the general organization represented in Letters Patent of th United States No. 436,532 to O. Mergenthaler, wherein a slug or linotype is cast in a slotted mold against a composed line of matrices which produce the type characters thereon. In these machines, the molds are usually mounted in a vertical disk or wheel which presents the selected mold in a horizontal position for 'casting and thereafter carries it around to a vertical position in front of an ejector blade which pushes the cast slug therefrom.

My present invention is directed to an improved mounting of themold disk, as will be fully described in the detailed description to follow.

, In the accompanying drawing, I have shown my invention merely in preferred form and by way of. example and as applied to a linotype machine, and obviously manychanges and variations therein and in its mode of application may be made without departure from its spirit. Generally speaking, I desire it to be understood that I do not limit myself to any specific form or embodiment, except in so far as such limitations are specified in the claims.

Referring to the drawing Figure 1 is a detached perspective View of the so-called mold slide upon which the disk is mounted; and

Fig. 2 is a plan view of the assembled parts'showing in section the mold disk and t i p o d. un ing- 1 on As usual the mold disk A, equipped with one or more molds A is mounted for rotation upon the arm or support B projecting laterally from the mold slide B, which is arranged to be reciprocated forwardly and backwardly in the machine frame by its operating cam B The disk A is intermittently rotated by the driving pinion A in such manner that during casting the selected mold is presented in a horizontal position and after casting carried around to a vertical position, as shown in Fig. 2, where it registers with a pair of trimming knives Dbetween which the slug is ejected from the mold by an ejector blade carried by the operating slide C. As is well known, the reciprocation of the mold slide B is timed so as to move the disk rearwardly when it is to be rotated to carry the selected mold from casting to ejecting position, or vice versa,

LINOTYPE and 'to move the disk forwardly when in either of such positions, in one case to in-' sure the close contact of the mold withthe composed matrix line, and in the other, to locate the mold in immediate proximity 'to the trimming knives. The mold disk is provided with a pair of dowel-pins A which, when it is movedforwardly, engage in corresponding sockets A secured rigidly to'the vise frame, such engagement effecting and maintaining the proper registration of the mold with the cooperating devices. ,At its free end the arm B 'is provided with the back knife D vwhich trims the base of the slug while in the mold. The parts so far described, except as hereinafter pointed out, are or. may be of any approved construction.

As before stated, the present invention is directed to means of improved construction for mounting the disk upon the laterally projecting arm or support B In the 'embodiment illustrated, the disk'A is rotatably mounted upon a large hollow bearing sleeve or boss E detachably connected to the arm or support B by means of a solid cylindrical stud or bolt F passing loosely through an open socket member Bformed on the support and through a central opening E? ofthe boss, the stud being provided at'its front end with a clamping nut or collar F screw-threaded to a reduced portion thereof and bearing against the front face of the boss to retain it thereon. By unscrewing the nut F the boss E may be instantly slipped ofi the stud F orthe latter itself removed. When the boss is clamped position by the nut F it is seated within and flatly up against the bottom face of a recess B which is cut into the arm or support 13 to receive it.

At its rear with an annular flangeE interposed between the support B and the rear face of the mold disk and which is of greater thickface the boss E is provided ness than the depth of the recess 13*. 'The flange E thus serves not only as a spacer or washer -to hold the mold disk away'from the support B but also as a guide "for the disk during its floating or vertical movement with respect to the boss, it being noted in this connection that the diameter of the boss is slightly less than .that of the opening or bearing in the disk to permitof such floating action. I

fllhe .disk is retained in place by a cap plate G detachably,securedby screws G to the boss E and formed with acentral openingG to fit over theclampingnut F The plate G in additionrto its retaining function serves in cooperation with the flange E to guide the mold disk in its floating movements.

It will be understood, of course, that all the parts are properly machined to insure their functioning in the required manner.

, It is also noted that, if desired, the hollow boss E may be used for the circulation of a cooling medium, its'interiorcavity being ifn'the form of a closed annular chamber surrounding the opening E and through which the cooling medium may be freely circulated.

My improved construction presents many advantages over those of the prior art, not only in respect to the ;cost of manufacture and the greater efficiency and accuracy in the operation of the machine, but also in respect to thejconvenience of attaching the mold disk and the other parts .to and detaching them from the mold slide when desired. The construction is alsosuch as to permit the utilization of old parts which have heretofore been unavailable for use in the more modern machines. Such advantages and others will be apparent to those skilled in the art.

'Having thus {described my invention, its construction and mode of operation, what I claim and desire to secure by Letters Patent of the United States, is as follows 1 In a slug casting machine, the combination of a rotatable mold disk, a support formed with-an open socket member, a stationary bearing sleevetor boss upon which themolddiskis rotatably mountedand provided with a central opening arranged in endwise alinement with the open socket member, and a sustaining stud or bolt separate from the boss and passing freely through the (topics ofthis patent may be obtained for five cents each, by addressing the Washington, -D.-C.

socket member and freely through the opening of the boss and provided at one end with a nut or collar screwethreaded thereon to clamp and hold the p arts detachably together.

2. In a slug casting machine, the combination of a rotatable mold disk, a support provided with a sustaining stud, a bearing sleeve-or boss upon which the mold disk is mountedand formed with a central opening through which the sustaining stud passes, a clamping nut screwed on the free end of the stud and bearing against .the front faceof thebearing sleeve or boss, and a cap plate detachably secured to the boss and bearing against the front face of the mold disk and formed with a central opening to clear the clamping nut.

3. In a slug casting machine, the combination of a rotatable mold disk, a support, and a bearing sleeveor boss fixed to the support and upon which the mold disk is mounted, the said bossbeing provided at its rear face with an annular ,flange forming a washer between the mold disk and the support.

4. In a linotype machine, the combina-" tion ofa mold slide having a laterally projectingarmor support ,formed in its'front face with a recess,'.afbearing sleeveor boss secured to the support within the recess and formed at its rear face with an annular flange of greaterthickness than the depth of the recess, and a ,mold disk rotatably mounted upon the bearing sleeve or boss.

5. In a linotype machine, the combination of the mold slide B having thelaterally projectingarm.or'support B provided with the open socket memberB and-formed in its front face with the recess B the bearing sleeve or boss E located in the recess B and formed with .the rear flange E and the central opening E ,the stud or boltF passing through the socket member B and the opening E of the boss "E, the clamping nut orcollarF screwed onthe stud F and.bear ing against the front face of the bearing sleeve or boss E, the mold disk A mounted upon the bearing sleeve or boss, and the retaining plate or cap G detachably secured to the boss E andbearing against the front face of the mold ;disk,.substantially as shown and described.

In testimony whereof, I have aflixed my signature.

' WVALTER S. *COE.

fOongmissionerof Patents, 

